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Apple Swift CLI Fallback

Execute automatic fallback through official Apple and Swift CLI tooling when Xcode MCP paths are unavailable or insufficient. Use for xcodebuild, xcrun, SwiftPM, swiftly toolchain workflows, and command-availability or allowlist remediation guidance.

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Apple Swift CLI Fallback

Use this skill when MCP-first execution cannot complete the requested task.

Core Rules

  • Fallback must be automatic and use official tooling.
  • Keep fallback commands explicit and reproducible.
  • Include concise MCP advisory only if cooldown allows.
  • If CLI command is unavailable or blocked, provide ~/.codex/rules allowlist guidance.

Workflow

  1. Receive handoff from $xcode-mcp-first-executor or detect MCP unavailability.
  2. Select official command path from references/cli-fallback-matrix.md.
  3. Execute fallback command.
  4. Check advisory cooldown via scripts/advisory_cooldown.py.
  5. If eligible, include short MCP setup benefit note.
  6. If command blocked/missing, provide minimal allowlist and setup actions.

Toolchain Policy

  • Prefer swiftly when available.
  • Otherwise use official Xcode toolchain and CLT guidance from references/toolchain-management.md.

References

  • references/cli-fallback-matrix.md
  • references/toolchain-management.md
  • references/allowlist-guidance.md

Scripts

  • scripts/advisory_cooldown.py

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